Hauck



Feb. 7, 1956 T. HAUCK 2,733,487

WINDOW SILL CONSTRUCTION Filed March 16, 1953 INVENTOR Tkeoclorejfau/ck/ M M 13y ATTO 5 5' s United States PatentO WINDOW SILLCDNSTRUCTIGN Theodore Hauck, Bellmore, N. Y., assignor to General BronzeCorporatiomGarden City, N. Y.

Application March 16, 1953, Serial No. 342,472

12 Claims. 01. 20-70 are mounted, although the invention has otherapplicat tions as will be realized from the following description.

In sills of the type referred to, moisture collects in both the innerand outer channels and must be led to the outside and there dischargedto prevent suflicient accumulation in the inner channel to cause anoverflow into the room in which the window is installed. It will berealized that outside pressure such as created by a wind will tend toprevent the discharge of the moisture and to cause it to accumulate inthe channels.

To provide for a discharge of the moisture from the channels against theeffect of the outside pressure, each independently of the other, theinvention contemplates a direct discharge of the moisture from the outerchannel to the outside and in addition a direct discharge of themoisture from the inner channel to the outside.

In the drawing I have illustrated the invention as being applied to thesill of an extruded window frame in which horizontally slidable sashesare mounted.

In these drawings,

Figure 1 is a fragmentary-elevation illustrating the type of scupperthat is incorporated in the sill for the discharge of the moisture fromthe outer channel.

Figure 2 is an enlarged transverse vertical sectional view on line 22 ofFigure 1. 1

Figure 3 is a fragmentary elevation of the sill illustrating the type ofscupper that is incorporated therein for discharging the moisture froman inner horizontal channel of the frame.

Figure 4 is a vertical section on line 4-4 of Figure 3; and

Figure 5 is a horizontal section on line 55 of Figure 3.

In the drawing, reference character the sill is indicated generally bythe S. The outer horizontal channel in the sill is indicated by thereference character OC, while the adjacent inner channel is indicated bythe reference character IC. These channels are formed by an outer flangeF, an inner flange F1 and an intermediate flange or partingstrip F2which extend upwardly from the base B of the sill. The upper edges ofthese flanges are provided with bearing members between which the sashesslidably move to close or open the window frame opening.

To permit the water to drain from the outer channel, scuppers, indicatedgenerally by the reference numeral 10, are provided at as many locationsalong the length of the sill as are desirable in a sill of a particularlength. Each of these scuppers comprises an opening 12 which is baflledby louver 14, the louver being formed by striking out a portion of theflange F to such an extent that the mouth of the opening 12 willdischarge downwardly and the opening 12 will otherwise be substantiallycovered bythe louver. i p

A moisture discharge surface 16 inclines downwardly and outwardly, asshown in Figure 2, substantially from the plane of the inner facelS ofthe flange F and from the junction 20 of the inner surface 22 of thechannel DC with the inner face 18 of the flange F. Moreover the innersurface 24 of the louver 14 extends downwardly and outwardly from theinner face 18 of the flange F to the discharge opening 12.

When water accumulates in the channel 0C it will flow to one or more ofthe scuppers 10 and through the scuppers to the outside of the building.

The dimensions of the opening at 12 are such that the accumulated waterin the channel 00 will create a bridge or darn across the opening 12 dueto the restraining influence resulting from the surface tension of thewater at this point. However, when the water builds up a suflicient headthe restraining effect of the surface tension will be overcome and thewater will start to flow. This flow is greatly facilitated by theinclined moisture discharge surface 16.

With a scupper of this form it is possible to incorporate in a sill,scuppers of relatively small size without seriously affecting the flowof the moisture therefrom.

While the dimensions of the opening 12 through the face 18 of the outerflange F are not critical, I have found that there are certain optimummeasurements which have produced satisfactory results in tests. I havefound that the distance between the surfaces 16 and 24 should be notsubstantially greater than three nor less than one eighth of an inch. Ihave found a scupper of one inch in length to be satisfactory.

To permit the discharge of moisture from the inner channel IC,unhampered bythe effect of any wind pressure to which the scuppers 10are subjected, I provide the inner channel IC with scuppers of the formillustrated in the drawings. By means of these scuppers the moisture isconducted from the inner channel IC directly to the outside withoutbeing commingled with the moisture that accumulates in the outer channel0C.

The outer flange F (Figure 4) ing 26 and the parting bead opening 28,which openings 26 and 28 are in substantial alignment with each other toestablish a direct passage between the outside and the inside channelIC.

To provide for the passage of moisture from the inner channel IC to theoutside in isolation from the outer channel 0C but traversing the same,I have provided a discharge conduit, illustrated in Figures 3, 4 and 5.This conduit comprises side Walls 30 and 32 and an upper wall 34 whichform a conduit having open ends of substantially the same shape anddimensions as the openings 26 and 28 in the. flanges F and F2respectively.

F2 is provided with an The inner ends of the side walls 30 and 32 arebent as i at 36 around the inner face of the flange F2 to secure theconduit in position against outward movement.

A closure flap 38 is provided for opening and closing the passagethrough the conduit. In the form illustrated in the drawing, the outerend of the upper wall 34 of the conduit extends beyond the outer face ofthe flange F to provide a support for the closure flap 38. This portionof the upper wall 34 is rolled, as at 40, to form the support referredto. The closure flap 38 is provided with a recess 42 for receiving therolled portion 49 as illustrated in Figure 3. This recess 42 results inthe formation of cars or ear portions 44 between which trunnions 46extend. These trunnions are mounted within the rolled portion 40 of theflap support in such manner that the closure flap 38 may have freeinward and outward pivotal movements, the freedom being permittedbecause of the fact that the space in the rolled portion siXteenths ofan inch is provided with an open- 4Q somewhat larger than thecross-section of .the.trun-. nions.

The ear portions 44 are bent outwardly to permit the closure-flapfto vengage "the outer-face of the flan'g'e' and to abut this face when theflap reaches the desired open position;

The upw'ardly' 1011a: portion 40 of the flap suppdrfl effectively closes-ari'y space that: exists"-'be'tween 'the 'uppeii face, ofthe wall 34andthe adjacent "face of the opening at '26: v

However,- in-z order thatflthe portionof the: recess 42 that islocatedbelow the rolled-='portiorr' 49a w'ill b'e ef fectively closed,the wall 34 is pr-dvided with a closure" As the-pivoting of theclosure'rflap "is: relatively loose and as the flap isformeda'prefe'rably; ofrelatively thin'" aluminum it:- will swingoutwardly; pivotally, under" the pressure of: a; very small amount of:water: and thus perrnitJthe' discharge: of they-"water periodically asthe out side 1 pressure will permit.

To facilitatethe passageof .the"water" from the inner and outerchannels" ofthe frame through the scu'ppers;

the inner surface ofthe base" of the 'frame may be in clined'astill'ustrated in" Figures' l and 4 J of the drawing;

What I claim is:

,1.- AWindOW frame construction" comprising a header, sill and jarnbs;the sill having spaced; longitudinally ex-' tending inner, outer andintermediate flanges extending substantially vertically upwardly inspaced relation to each other and Iforming'innerandv outer upwardly open7 parallel" channels for the receptionof" ingin the intermediate flangeand theouter" openen'd'reg istering with said openingin the outerflangetocorrve'y' moisture fromsaid inner" channel through said outer channeland through said outer flange, a closure fl'ap for said outer open endof said conduit freely pivoted ad-" jacent 'said outer open en'd to"swing freely into" a substantially' vertical position downwardlyfromfitspivot tonormally close said open outer end of said: conduita'ndito swing freely outwardly on; itspi'vot to uncover said outer openend of saidconduit; 7

2; The icombination of' element' recited: in claim 1 wherein saidclosure flap is arranged to contact sa'id' sill to ingv movement ofsaid" fla'p:-'

3% The combi-na'tioriof elements recited in claiiiif 2* and -=exreiids:-outwardlyfrom" the lane at the outer face;

of said flap and fronr said'pivbtwherehyitheceritrexof' gravity o'f saidflap is" outside of its" outer race; 7

4IThe combination" of' 'element's recitedin claiiri 1 wherein the pivotofsaid flap is looselyrnountedtohave bodily movement's inwardlyg towardand outwardly away from said outer flange and said outer open endof said1 conduit and constructed: and arranged; to' insurethe. clossaid conduithaving-' open inner and outer ends; the inner open' end registering'with said open-' provided-with an extension limit the' outward swing:

4 ingof-theentirearea of-said-outerwopen=end-of-saidconduit under windpressure.

5. The combination of elements recited in claim 1 wherein said outerchannel is provided with at least one scupper extending through saidouter flange to discharge such moisture as is excluded from said conduitfrom said outer channel.

6. The combination of elements: recitedjin claim 5 wherein said scupperis comprised by an opening extending' through saidoute'r flange andhaving answer faceextending abruptly'downwardlyfro'm" the" lower face ofthe portion of said'sillthat-formsthe' bottoru of=saidouter channel, anda shield extending outwardly from said outer flange and arranged toshieId said' Opening.

7. The combination of elements recited in claim 1 wherein the outer endof said conduit is provided with a bearing portion and said flap isprovided with trunnions extending into said bearin'g portion" tolooselyand fi'eely pivot said flap insaid bearing portion" for" neerewarmovements.

8.- The combination of el'e'rne'nts recited" in" clairrr 7 wherein saidbearin'gmember is su'flicieiitly larger? was said trunnions to permitthel'atter'to move bodily insaid bearin'g whereby said 'flap is freeto move'pivot'ally 'aridto move bodily toward a'nd away frorrr said outer openend ofi'said'conduit'.

9.-'A: windowframe construction com'prisirig'a header, sill and jambs;the sill having spaced longitudiiially ex" tending? inner, outer andintermediate'fianges" extending substantially vertically upwardlyinspaced m tres to each other and forming inner-'and outer upwardly opening, substantially'parallelchannels for- 111e=receprion=orr11e lowerrails of a pair of sashes'g:said outer flang'e having arr openingtherethr ough, means for" mmummgmomm frorrr: said 'inner channel throughsaid intermediateand outer flanges andthrough said opening'in saidouter*fiange Which meanslacks'communication with said oute'r channel;and a flap freely pivoted-adjacent s'aid -opening i said outer flangeto=nonnally freelyswing intb position-to close: said openingand toswing-deposition"tduncover said'o'pening;

10. The combinationof elementsrecited in claim- 9- wherein said flap isprovided with an extension forlimiting the extent of its movement 'intosaid last name'd position."

11. The combinati'omof elel eiItS IECited in olaiitn 9 wherein:saidafla'p is mounted F to ha've' bodily movements toward and away fromsaid openin'g insaid oute'r flangei- IZrThe comhin'ation of ele'm'e'ntsrecited in"c1aiin 9 wherein: said outer? channel is provided withatleast one scupper openingtinde'pendent ofisaid fir's't rn'entior'ied opii ing for discharging moisture which is excluded from means forconducting moisture from 's ai'd outer channel.

ReferenQes CiteddIit-he fileofithiS patent UNITED STATES PATENTS I

